ArtifactsIndians, North AmericanIndiaIndian OceanUnited States Indian Health ServiceIndians, South AmericanIndian Ocean IslandsPhantoms, ImagingImage EnhancementAlaskaArizonaAlgorithmsImage Processing, Computer-AssistedReproducibility of ResultsImage Interpretation, Computer-AssistedInuitsSensitivity and SpecificityRadiographic Image EnhancementImaging, Three-DimensionalSouth DakotaSignal Processing, Computer-AssistedArchaeologyNew MexicoMagnetic Resonance ImagingOklahomaSignal-To-Noise RatioEcho-Planar ImagingCone-Beam Computed TomographySubtraction TechniqueMotionTomography, X-Ray ComputedRadiographic Image Interpretation, Computer-AssistedMalaysiaMetalsIndians, Central AmericanNorth DakotaEthnic GroupsMedicine, AyurvedicWest IndiesSingaporeAsian Continental Ancestry GroupEquipment DesignPhylogenyHistory, AncientBrainEuropean Continental Ancestry GroupContrast MediaFourier AnalysisCardiac-Gated Imaging TechniquesPrevalenceUnited StatesDiagnostic ErrorsMagnetic Resonance AngiographySouthwestern United StatesRespiratory-Gated Imaging TechniquesMovementWavelet AnalysisGenetic VariationTime FactorsComputer SimulationProstheses and ImplantsRadiography, AbdominalEquipment Failure AnalysisAmplifiers, ElectronicTomography, Emission-Computed, Single-PhotonSequence Analysis, DNAMontanaFalse Positive ReactionsSurgical InstrumentsElectroencephalographyWhole Body ImagingGeographyFixativesTechnologyComorosGenotypeRisk FactorsUltrasonographyQuality ControlMultidetector Computed TomographyModels, TheoreticalGene FrequencyPolymerase Chain Reaction